diff --git a/IOB-WIN-FORM/Iob/Generic.Public.cs b/IOB-WIN-FORM/Iob/Generic.Public.cs
index 737633ac..d7b6fe8f 100644
--- a/IOB-WIN-FORM/Iob/Generic.Public.cs
+++ b/IOB-WIN-FORM/Iob/Generic.Public.cs
@@ -2388,7 +2388,8 @@ namespace IOB_WIN_FORM.Iob
             // init obj display
             newDisplayData currDispData = new newDisplayData();
             // controllo contatore invio "keepalive"... invio solo a scadenza
-            if (DateTime.Now.Subtract(lastDisconnCheck).TotalSeconds > utils.CRI("disconMaxSec"))
+            int disconnMaxSec = utils.CRI("disconMaxSec");
+            if (DateTime.Now.Subtract(lastDisconnCheck).TotalSeconds > disconnMaxSec)
             {
                 // resetto tutti i valori BYTE IN/PREV/OUT... così invio macchina spenta...
                 B_input = 0;
@@ -2397,6 +2398,7 @@ namespace IOB_WIN_FORM.Iob
                 accodaSigIN(ref currDispData);
                 // update controllo
                 lastDisconnCheck = DateTime.Now;
+                lgInfo($"Send 00 | disconMaxSec: {disconnMaxSec}");
             }
             raiseRefresh(currDispData);
         }
diff --git a/IOB-WIN-OPC-UA/App.config b/IOB-WIN-OPC-UA/App.config
index 983b075b..f84968ff 100644
--- a/IOB-WIN-OPC-UA/App.config
+++ b/IOB-WIN-OPC-UA/App.config
@@ -37,7 +37,7 @@
         <add key="nMaxSend" value="100" />
         <add key="pingTestSec" value="5" />
         <add key="watchdogMaxSec" value="90" />
-        <add key="disconMaxSec" value="60" />
+        <add key="disconMaxSec" value="30" />
         <add key="defIOB" value="2999" />
         <add key="pauseSendMSec" value="2000" />
         <add key="sendStartFLog" value="false" />